My Rolleiflex 3.5E Planar for your Mamiya 645 AFD II?

I'm looking to trade my Rolleiflex 3.5E Planar, with Gordy strap and original leather case for a Mamiya 645 AFD II. The images the Rollei makes are wonderful, but when it comes to handheld use, I prefer a viewfinder to ground glass.

This is the same Rolleiflex I offered in exchange for a Leica R8 in these forums, but I've got the R8 in a different deal now, and the Rolleiflex remains available.

I'd like to keep this in the UK, but will consider EU. USA is probably not worth it due to the import duties I'll pay on the camera.